one time i was showering after school. i normally go to my room and then take off my towel to air dry. so,i got to my room, took off my towel, and i was just hanging out in my room naked. a few minutes later i heard my sister knock on the door. i told her to wait a little while but she opened the door anyway. it was bad enough having my sister see me naked, but she was standing there with two of her female friends. they were just standing there at my door with their mouths open staring at my penis. i was a little stunned to and it took me a few seconds to realize my penis was just hanging there in plain sight in front of three girls that were all older than me. i was 17 and they were 18, so they werent that much older, but still. anyway, after i covered up, they just closed the door and left after saying sorry. they never let me forget though. but they were pretty cool about it. the only thing my sister's friends ever said was, "we enjoyed the show." i think my sister was just grossed out. but my penis is a decent size so i guess it wasnt too bad. but still, it was pretty embarrassing.